---
title: "Connect Remotely to Your AI Compute — Troubleshooting"
canonical: "https://build.nvidia.com/playbooks/connect-to-your-spark/troubleshooting.md"
---

# Possible issues connecting via NVIDIA Sync

| Symptom | Cause | Fix |
|---------|--------|-----|
| Device name doesn't resolve | mDNS blocked on network | Use IP address instead of hostname.local |
| Connection refused/timeout | Hardware platform not booted or SSH not ready | Wait for device boot completion; SSH available after updates finish |
| Authentication failed | SSH key setup incomplete | Re-run device setup in NVIDIA Sync; check credentials |

# Possible issues connecting via Manual SSH

| Symptom | Cause | Fix |
|---------|--------|-----|
| Device name doesn't resolve | mDNS blocked on network | Use IP address instead of hostname.local |
| Connection refused/timeout | Hardware platform not booted or SSH not ready | Wait for device boot completion; SSH available after updates finish |
| Port forwarding fails | Service not running or port conflict | Verify remote service is active; try a different local port |

For latest known issues, see the documentation linked under **Resources** for your hardware platform.